I'm building a flutter app with a Login Screen. On focus on the text field(s), the screen is overflowed and i cannot scroll. I've tried using a ListView.builder, but that just gives a renderBox error, and the regular ListView doesn't work
The widget structure is like this
-scafold
- body
- container
- column
- form
- column
- textInput
- textInput
- container
- container
- row
- raisedButton
Thank You in advance !!
The ListView solution should work, but at the time of writing, it suffers from the crash listed here. Another way to achieve the same thing without this crash is to use a SingleChildScrollView:
return new Container(
child: new SingleChildScrollView(
child: new Column(
children: <Widget>[
_showChild1(),
_showChild2(),
...
_showChildN()
]
)
)
);
try this Code: Its Using ListView
class Home extends StatelessWidget {
#override
Widget build(BuildContext context) {
// TODO: implement build
return Scaffold(
body: Center(
child: ListView(
shrinkWrap: true,
padding: EdgeInsets.all(15.0),
children: <Widget>[
Center(
child: Card(
elevation: 8.0,
child: Container(
padding: EdgeInsets.all(10.0),
child: Column(
children: <Widget>[
TextField(
decoration: InputDecoration(
prefixIcon: Icon(Icons.person),
labelText: "Username or Email",
),
),
SizedBox(
height: 15.0,
),
TextField(
decoration: InputDecoration(
prefixIcon: Icon(Icons.lock),
labelText: "Password",
),
),
SizedBox(
height: 15.0,
),
Material(
borderRadius: BorderRadius.circular(30.0),
//elevation: 5.0,
child: MaterialButton(
onPressed: () => {},
minWidth: 150.0,
height: 50.0,
color: Color(0xFF179CDF),
child: Text(
"LOGIN",
style: TextStyle(
fontSize: 16.0,
color: Colors.white,
),
),
),
)
],
),
),
),
),
SizedBox(
height: 25.0,
),
Row(
children: <Widget>[
Expanded(child: Text("Don't Have a Account?")),
Text("Sign Up",
style: TextStyle(
color: Colors.blue,
)),
],
),
],
),
),
bottomNavigationBar: Padding(
padding: EdgeInsets.all(10.0),
child: Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Expanded(
child: RaisedButton(
padding: EdgeInsets.all(15.0),
onPressed: () {},
color: Colors.white,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(
32.0,
),
side: BorderSide(color: Color(0xFF179CDF))),
child: Text(
"SKIP SIGN UP FOR NOW",
style:
TextStyle(fontSize: 18.0, color: Color(0xFF179CDF)),
),
)),
],
),
),
);
}
}
There are two easy ways of doing it.
Wrap your Column in a SingleChildScrollView
SingleChildScrollView(
child: Column(
children: [
Text('First'),
//... other children
Text('Last'),
],
),
)
Use ListView instead of Column.
ListView(
children: [
Text('First'),
//... other children
Text('Last'),
],
)
This approach is simple to use, but you lose features like crossAxisAlignment and other benefits provided by Column, in that case, you can wrap your children widget inside Align and set alignment property.
Now you may have nested children which are further scrollable, in that case, you need to provide a fixed height to your children, you may use SizedBox for that, that's it.
For example:
ListView(
children: [
Text('First'),
SizedBox(
height: 100,
child: ListView(...), // nested ScrollView
),
Text('Last'),
],
)
We can use the Expanded widget. It will add scrolling.
return new Expanded(
child: new SingleChildScrollView(
child: new Column(
children: <Widget>[
_showChild1(),
_showChild2(),
...
_showChildN()
]
)
)
);
Wrap your column in SingleChildScrollView and then wrap SingleChildScrollView in a Center widget to center the widgets in the column.
Center(
child: SingleChildScrollView(
child: Column(
children: [
Text('First'),
//... other children
Text('Last'),
],
),
)
Hi I am trying to create login screen. It is working fine for me. When I open the keyboard then it is giving me an error Bottom overloaded by 213 pixels.
Widget LoginPage() {
return new Scaffold(body: Container(
height: MediaQuery.of(context).size.height,
decoration: BoxDecoration(
color: Colors.white,
image: DecorationImage(
colorFilter: new ColorFilter.mode(
Colors.black.withOpacity(0.05), BlendMode.dstATop),
image: AssetImage('assets/images/mountains.jpg'),
fit: BoxFit.cover,
),
),
child: new Column(
children: <Widget>[
Container(
padding: EdgeInsets.all(120.0),
child: Center(
child: Icon(
Icons.headset_mic,
color: Colors.redAccent,
size: 50.0,
),
),
),
new Row(
children: <Widget>[
new Expanded(
child: new Padding(
padding: const EdgeInsets.only(left: 40.0),
child: new Text(
"EMAIL",
style: TextStyle(
fontWeight: FontWeight.bold,
color: Colors.redAccent,
fontSize: 15.0,
),
),
),
),
],
),
new Container(
width: MediaQuery.of(context).size.width,
margin: const EdgeInsets.only(left: 40.0, right: 40.0, top: 10.0),
alignment: Alignment.center,
decoration: BoxDecoration(
border: Border(
bottom: BorderSide(
color: Colors.redAccent,
width: 0.5,
style: BorderStyle.solid),
),
),
padding: const EdgeInsets.only(left: 0.0, right: 10.0),
child: new Row(
crossAxisAlignment: CrossAxisAlignment.center,
mainAxisAlignment: MainAxisAlignment.start,
children: <Widget>[
new Expanded(
child: TextField(
obscureText: true,
textAlign: TextAlign.left,
decoration: InputDecoration(
border: InputBorder.none,
hintText: 'samarthagarwal#live.com',
hintStyle: TextStyle(color: Colors.grey),
),
),
),
],
),
),
Divider(
height: 24.0,
),
new Row(
children: <Widget>[
new Expanded(
child: new Padding(
padding: const EdgeInsets.only(left: 40.0),
child: new Text(
"PASSWORD",
style: TextStyle(
fontWeight: FontWeight.bold,
color: Colors.redAccent,
fontSize: 15.0,
),
),
),
),
],
),
new Container(
width: MediaQuery.of(context).size.width,
margin: const EdgeInsets.only(left: 40.0, right: 40.0, top: 10.0),
alignment: Alignment.center,
decoration: BoxDecoration(
border: Border(
bottom: BorderSide(
color: Colors.redAccent,
width: 0.5,
style: BorderStyle.solid),
),
),
padding: const EdgeInsets.only(left: 0.0, right: 10.0),
child: new Row(
crossAxisAlignment: CrossAxisAlignment.center,
mainAxisAlignment: MainAxisAlignment.start,
children: <Widget>[
new Expanded(
child: TextField(
obscureText: true,
textAlign: TextAlign.left,
decoration: InputDecoration(
border: InputBorder.none,
hintText: '*********',
hintStyle: TextStyle(color: Colors.grey),
),
),
),
],
),
),
Divider(
height: 24.0,
),
new Row(
mainAxisAlignment: MainAxisAlignment.end,
children: <Widget>[
Padding(
padding: const EdgeInsets.only(right: 20.0),
child: new FlatButton(
child: new Text(
"Forgot Password?",
style: TextStyle(
fontWeight: FontWeight.bold,
color: Colors.redAccent,
fontSize: 15.0,
),
textAlign: TextAlign.end,
),
onPressed: () => {},
),
),
],
),
new Container(
width: MediaQuery.of(context).size.width,
margin: const EdgeInsets.only(left: 30.0, right: 30.0, top: 20.0),
alignment: Alignment.center,
child: new Row(
children: <Widget>[
new Expanded(
child: new FlatButton(
shape: new RoundedRectangleBorder(
borderRadius: new BorderRadius.circular(30.0),
),
color: Colors.redAccent,
onPressed: () => {},
child: new Container(
padding: const EdgeInsets.symmetric(
vertical: 20.0,
horizontal: 20.0,
),
child: new Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
new Expanded(
child: Text(
"LOGIN",
textAlign: TextAlign.center,
style: TextStyle(
color: Colors.white,
fontWeight: FontWeight.bold),
),
),
],
),
),
),
),
],
),
),
new Container(
width: MediaQuery.of(context).size.width,
margin: const EdgeInsets.only(left: 30.0, right: 30.0, top: 20.0),
alignment: Alignment.center,
child: Row(
children: <Widget>[
new Expanded(
child: new Container(
margin: EdgeInsets.all(8.0),
decoration: BoxDecoration(border: Border.all(width: 0.25)),
),
),
Text(
"OR CONNECT WITH",
style: TextStyle(
color: Colors.grey,
fontWeight: FontWeight.bold,
),
),
new Expanded(
child: new Container(
margin: EdgeInsets.all(8.0),
decoration: BoxDecoration(border: Border.all(width: 0.25)),
),
),
],
),
),
new Container(
width: MediaQuery.of(context).size.width,
margin: const EdgeInsets.only(left: 30.0, right: 30.0, top: 20.0),
child: new Row(
children: <Widget>[
new Expanded(
child: new Container(
margin: EdgeInsets.only(right: 8.0),
alignment: Alignment.center,
child: new Row(
children: <Widget>[
new Expanded(
child: new FlatButton(
shape: new RoundedRectangleBorder(
borderRadius: new BorderRadius.circular(30.0),
),
color: Color(0Xff3B5998),
onPressed: () => {},
child: new Container(
child: new Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
new Expanded(
child: new FlatButton(
padding: EdgeInsets.only(
top: 20.0,
bottom: 20.0,
),
child: new Row(
mainAxisAlignment:
MainAxisAlignment.spaceEvenly,
children: <Widget>[
Icon(
const IconData(0xea90,
fontFamily: 'icomoon'),
color: Colors.white,
size: 15.0,
),
Text(
"FACEBOOK",
textAlign: TextAlign.center,
style: TextStyle(
color: Colors.white,
fontWeight: FontWeight.bold),
),
],
),
),
),
],
),
),
),
),
],
),
),
),
new Expanded(
child: new Container(
margin: EdgeInsets.only(left: 8.0),
alignment: Alignment.center,
child: new Row(
children: <Widget>[
new Expanded(
child: new FlatButton(
shape: new RoundedRectangleBorder(
borderRadius: new BorderRadius.circular(30.0),
),
color: Color(0Xffdb3236),
onPressed: () => {},
child: new Container(
child: new Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
new Expanded(
child: new FlatButton(
padding: EdgeInsets.only(
top: 20.0,
bottom: 20.0,
),
child: new Row(
mainAxisAlignment:
MainAxisAlignment.spaceEvenly,
children: <Widget>[
Icon(
const IconData(0xea88,
fontFamily: 'icomoon'),
color: Colors.white,
size: 15.0,
),
Text(
"GOOGLE",
textAlign: TextAlign.center,
style: TextStyle(
color: Colors.white,
fontWeight: FontWeight.bold),
),
],
),
),
),
],
),
),
),
),
],
),
),
),
],
),
)
],
),
));
}
Does anyone know what could be the issue ?
I would suggest replacing the top Column widget with a ListView, that automatically resizes on keyboard input, whilst also supporting scrolling.
If you really want this setup as it is, you can edit your Scaffold with the parameter
resizeToAvoidBottomPadding: false
That should make the error disappear
Scaffold(
resizeToAvoidBottomInset: false, // set it to false
...
)
As Andrey said, you may have issues with scrolling, so you may try
Scaffold(
resizeToAvoidBottomInset: false, // set it to false
body: SingleChildScrollView(child: YourBody()),
)
With resizeToAvoidBottomPadding: false in Scaffold, You don't see all the widgets that are below the open textfield. The solution is to insert a container with a SingleChildScrollView inside. Example:
Container(
alignment: Alignment.center,
width: double.infinity,
height: double.infinity,
color: viewModel.color,
child: SingleChildScrollView(child:"Your widgets"));
you usually need to provide a scroll widget on top of your widgets because if you try to open the keyboard or change the orientation of your phone, flutter needs to know how to handle the distribution of the widgets on the screen.
Please review this resource, you can check the different options that flutter provide Out of the box, and choose the best option for your scenario.
https://flutter.io/widgets/scrolling/
wrap your child view into ListView will solve the prob. Please check this
class _LoginScreenState extends State<LoginScreen> {
#override
Widget build(BuildContext context) {
return new Scaffold(
body: new Container(
child: ListView(
children: <Widget>[
Padding(
padding: const EdgeInsets.all(8.0),
child: new Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
new Padding(
padding: EdgeInsets.only(left: 1,top: 50,right: 1,bottom: 1),
child: new Text("jk", style: TextStyle(fontFamily: "mono_bold")),
),
new Padding(
padding: EdgeInsets.only(left: 1,top: 50,right: 1,bottom: 1),
child: new TextField(
style: new TextStyle(),
decoration: InputDecoration(
labelText: "Email",
contentPadding: EdgeInsets.all(8.0)
),
keyboardType: TextInputType.emailAddress,
)
),
new Padding(
padding: EdgeInsets.only(left: 1,top: 50,right: 1,bottom: 1),
child: new TextField(
style: new TextStyle(
),
decoration: InputDecoration(
labelText: "Password"
),
keyboardType: TextInputType.text,
obscureText: true,
),
),
],
),
),
],
)
),
);
}
wrap your column into SingleChildScrollView will solve the problem. Please check this:
Widget build(BuildContext context) {
return Scaffold(
body: Container(
child: Center(
child: SingleChildScrollView(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
TextField(),
TextField(),
],
),
))));
}
And You also use for removing yellow black overflow line
resizeToAvoidBottomPadding: false
but in this case, TextField does not move up on click time.
wrap with SingleChildScrollView Widget here's my code to solve this situation:
it is best and easiest method
SingleChildScrollView(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
crossAxisAlignment: CrossAxisAlignment.stretch,
children: <Widget>[
Hero(
tag: 'logo',
child: Container(
height: 200.0,
child: Image.asset('images/logo.png'),
),
),
SizedBox(
height: 48.0,
),
TextField(
onChanged: (value) {
//Do something with the user input.
},
decoration: kTextFieldDecoration.copyWith(hintText: 'Enter username'),
),
SizedBox(
height: 8.0,
),
TextField(
onChanged: (value) {
//Do something with the user input.
},
decoration: kTextFieldDecoration.copyWith(hintText: 'Enter password'),
),
SizedBox(
height: 24.0,
),
RoundedButton(
colour: Colors.blueAccent,
text: 'Register',
onPressed: () {
//later todo
},
),
],
),
),
You can set resizeToAvoidBottomInset: false for avoiding overflow, but you can't reach fields in bottom of page, which can be covered by keyboard.
Or you can wrap body of Scaffold inside SingleChildScrollView
You can enclose all the widgets within the ListView.
So you can scroll it and the overloaded will disappear.
you should add resizeToAvoidBottomInset: false, and put your button in child:SingleChildScrollView() like the following code below :
Widget build(BuildContext context) {
return Scaffold(
resizeToAvoidBottomInset: false,
appBar: PreferredSize(
preferredSize:const Size(double.infinity,100),
child:(ResponsiveLayout.isTinyLimit(context) ||
ResponsiveLayout.isTinyHeightLimit(context))
? Container()
: const AppBarWidget(),
),
body: Center(
child:SingleChildScrollView(
child: Padding(
padding: const EdgeInsets.all(8.0),
child: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center ,
children: [
Text("Temperature"),
LineChartSample2(),
Text("Gas Level"),
LineChartSample2(),
on?Icon(Icons.lightbulb,
size:100,
color: Colors.lightBlue.shade700 ,
):const Icon(Icons.lightbulb_outline,
size:100,
),
ElevatedButton(
style: TextButton.styleFrom(
backgroundColor: on? Colors.green: Colors.white10),
onPressed: (){
dbR.child("movement").set({"Switch":!on});
setState(() {
on = !on;
});
},
child:on ? const Text("On"):const Text("Off"))
],
),
),
) ),
),
);
Put your content in to SingleChildScrollView and add a ConstrainedBox and try
https://api.flutter.dev/flutter/widgets/SingleChildScrollView-class.html
Wrap your top column inside SingleChildScrollView.
Make you layout scrollable.
You can wrap your Fields in single child ScrollView of Flutter.
This align items bottom to top,
Try this..
child: SizedBox(
height: MediaQuery.of(context).size.height,
child: SingleChildScrollView(
reverse: true,
Remove unwanted padding top and bottom
child: Container(
height: size.height,
width: size.width,
padding: EdgeInsets.only(
left: size.width * 0.15,
right: size.width * 0.15,
top: size.width * 0.15,
bottom: size.width * 0.15,
),
to change by this
child: Container(
height: size.height,
width: size.width,
padding: EdgeInsets.only(
left: size.width * 0.15,
right: size.width * 0.15,
),
This worked for me.
please set resizeToAvoidBottomPadding: false and set scrollPadding in textField
Instead of column widget try to use flex widget, which might solve your problem.
Try wrapping your main Column with
1.(ListView and give property shrinkWrap: true,) List view has property children: [], or
2.( SingleChildScrollView() )but it has only child: , .
Something like:
child: ListView(shrinkWrap: true, children: <Widget>[
new Column(children: <Widget>[
Container(
padding: EdgeInsets.all(120.0),
child: Center(
child: Icon(
Icons.headset_mic,
color: Colors.redAccent,
size: 50.0,
),
),
),
new Row(
children: <Widget>[
new Expanded(
child: new Padding(
padding: const EdgeInsets.only(left: 40.0),
child: new Text(
"EMAIL",
style: TextStyle(
fontWeight: FontWeight.bold,
color: Colors.redAccent,
fontSize: 15.0,
),
),
),
),
],
),
new Container(
width: MediaQuery.of(context).size.width,
margin: const EdgeInsets.only(
left: 40.0, right: 40.0, top: 10.0),
alignment: Alignment.center,
decoration: BoxDecoration(
border: Border(
bottom: BorderSide(
color: Colors.redAccent,
width: 0.5,
style: BorderStyle.solid),
),
),
padding: const EdgeInsets.only(left: 0.0, right: 10.0),
child: new Row(
crossAxisAlignment: CrossAxisAlignment.center,
mainAxisAlignment: MainAxisAlignment.start,
children: <Widget>[
new Expanded(
child: TextField(
obscureText: true,
textAlign: TextAlign.left,
decoration: InputDecoration(
border: InputBorder.none,
hintText: 'samarthagarwal#live.com',
hintStyle: TextStyle(color: Colors.grey),
),
),
),
],
),
),
Divider(
height: 24.0,
),
new Row(
children: <Widget>[
new Expanded(
child: new Padding(
padding: const EdgeInsets.only(left: 40.0),
child: new Text(
"PASSWORD",
style: TextStyle(
fontWeight: FontWeight.bold,
color: Colors.redAccent,
fontSize: 15.0,
),
),
),
),
],
),
new Container(
width: MediaQuery.of(context).size.width,
margin: const EdgeInsets.only(
left: 40.0, right: 40.0, top: 10.0),
alignment: Alignment.center,
decoration: BoxDecoration(
border: Border(
bottom: BorderSide(
color: Colors.redAccent,
width: 0.5,
style: BorderStyle.solid),
),
),
padding: const EdgeInsets.only(left: 0.0, right: 10.0),
child: new Row(
crossAxisAlignment: CrossAxisAlignment.center,
mainAxisAlignment: MainAxisAlignment.start,
children: <Widget>[
new Expanded(
child: TextField(
obscureText: true,
textAlign: TextAlign.left,
decoration: InputDecoration(
border: InputBorder.none,
hintText: '*********',
hintStyle: TextStyle(color: Colors.grey),
),
),
),
],
),
),
])
]),